Erp systems in supply chain management | mohamed baymout, Figure 1: erp, scm, bi & crm integration the increasing demands of using scm the notion of conformity which systems within the erp systems forces top erp emphasizes on the idea that all vendors to realize the need to integrate their supply chain members use the erp systems with an scm solution (tarn et al., same system. this method is 2002) or to create their own version or module impractical.